User's Manual

Chapter 2 WINBIOS Setup 53
PCI/PnP Setup
Choose the PCI/PnP Setup icon from the WINBIOS Setup screen to display
the PCI and Plug and Play Setup options, described below.
Plug and Play-Aware OS Set this option to Yes if the operating system in this computer is
aware of and follows the Plug and Play specification. Windows 95 is PnP-
aware. The settings are Yes or No. The Optimal and Fail-Safe default settings
are No.
Allocate IRQ to PCI VGA Set this option to Yes to allocate an IRQ to a VGA adapter card
that uses the PCI local bus. The settings are Yes or No. The Optimal and Fail-
Safe default settings are Yes.
PCI Slot-1 Latency Timer
PCI Slot-2 Latency Timer
PCI Slot-3 Latency Timer
PCI Slot-4 Latency Timer These options specify the latency timings (in PCI clocks) for PCI
devices installed in the four PCI expansion slots. The settings are 32, 64, 96,
128, 160, 192, 224, or 248. The Optimal and Fail-Safe default settings are 64.
USB Device Latency Timer This option specifies the latency timings (in PCI clocks) for USB
devices installed in the computer. The settings are 32, 64, 96, 128, 160, 192,
224, or 248. The Optimal and Fail-Safe default settings are 64.
USB Device IRQ Preference These options specify the IRQ priority for USB devices installed
in the computer. The settings are Auto, IRQ5, IRQ9, IRQ10, IRQ11, IRQ14,
and IRQ15, in priority order. If Auto is selected, AMIBIOS automatically
determines the optimal IRQ priority order. The Optimal and Fail-Safe default
settings are Auto.
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